Логотипы на букву O

Oriflame (Орифлейм)	OBI	Opel (Опель)
Ozon.ru	Outlook Express	Ostin
Opel, 2002-2007	Oracle Corporation	Opera 10, 2009
O'Hara	OKI Printing Solutions	Ottawa Senators
Opel, 2007-2009	Omega	Orio
Oklick	Oral-B	Octonus
Osmio	Orkla Group	Olympus Corporation
Oккo	Open! Design & Concepts	Optima
Osram	Österreichische Nationalbank	Orange SA
Oxagile	Orenburg Airlines	openSUSE